Until today. I present the Holmes HAWF-2043 Twin Window Fan. Check out these features ...
- Draws in cool air, exhausts hot air, or exchanges air with outside
- One-touch electronic control: two speeds and temperature selection
- Thermostat turns fan off/on to maintain selected comfort level
- Fits double-hung, vertical slider, and casement windows 24 to 37 inches wide
- Extenders permit custom fit; 12-1/4 inches high overall, with 8-1/2-inch fans
And the price was only $39.99 on amaon.